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Professor witnesses ottelia acuminata bloom again in Erhai Lake, SW China

Xinhua | Updated: 2025-06-06 09:09
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This file photo shows Kong Hainan (C, front) and his students on their way to take water samples of Erhai Lake in Southwest China's Yunnan province in November of 2013. [Shanghai Jiao Tong University/Handout via Xinhua]
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